These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Hey, It's That Guy!: Happens In-Universe late in Homeward Bound when Johnathan and Karen go to a movie and see an aged Matt Damon playing The Mentor; this is a big shock to them since they were put on ice in 1994, when his career was just starting to take off.